We already knew that Apple's annual Worldwide Developer Conference, better known as WWDC, was coming to San Francisco the week of June 13. And Apple had already confirmed that it was kicking off the event Monday with a press conference at the Bill Graham Civic Auditorium.

But as of today, the last piece of the puzzle fell into place. Apple has begun reaching out to journalists, confirming that the keynote will start at its traditional time: 10 a.m. PT.

"WWDC 2016 is going to be a landmark event for developers who are coding in Swift and building apps and products for iOS, OS X, watchOS and tvOS," Philip Schiller, Apple's senior vice president of worldwide marketing, said in a statement back on April 19, referring to the entire conference.

As for the June 13 keynote, we expect to hear details about the next version of Apple's iPhone/iPad software -- iOS 10 -- as well as news on Apple Watch, Apple TV and Macs. Just keep in mind that WWDC has been light on hardware in recent years: While it's possible you may see new Macs, inevitable sequels like the iPhone 7 and Apple Watch 2 are no doubt being held for September at the earliest. Likewise, don't expect to see a Siri speaker there, either -- even if Apple is working hard on building one, as it appears.